Another approach for routing reqs to Finagle's services

Routing.scala

val routes = User.routes orElse 
             Order.routes

// would be great having:
// val backend = RoutingService.byMethodAndPathObjct(routes)
val backend = new RoutingService(
  new PartialFunction[Request, Service[Request, Response]] {
    def apply(req: Request) = routes((req.method, Path(req.path)))
    def isDefinedAt(req: Request) = routes.isDefinedAt((req.method), Path(req.path))
  }
)

object User {
  val routes: PartialFunction[(Method, Path), Service[Request, Response]] = {
    case Method.Get -> Root / "user" => GetUser
  }
}

// object GetUser extends Service[]

object Order {
  val routes: PartialFunction[(Method, Path), Service[Request, Response]] = {
    case Method.Post -> Root / "order" => PostOrder
  }
}

// object PostOrder extends Service[]